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# pompé depuis
# https://eli.thegreenplace.net/2011/04/01/sample-using-qscintilla-with-pyqt
# puis modifié pour usage avec Qt6, et mise en place de la fonte par
# QtDesigner en amont.
#-------------------------------------------------------------------------
# qsci_simple_pythoneditor.pyw
#
# QScintilla sample with PyQt
#
# Eli Bendersky (eliben@gmail.com)
# This code is in the public domain
#-------------------------------------------------------------------------
import sys
from PyQt6.QtCore import QFontMetrics, QColor
from PyQt6.QtWidgets import QApplication
from PyQt6.Qsci import QsciScintilla, QsciLexerPython
class SimplePythonEditor(QsciScintilla):
ARROW_MARKER_NUM = 8
def __init__(self, parent=None):
super(SimplePythonEditor, self).__init__(parent)
font = self.font()
# Margin 0 is used for line numbers
fontmetrics = QFontMetrics(font)
self.setMarginsFont(font)
self.setMarginWidth(
0, fontmetrics.boundingRect(0,0,100,1000,0,"00000").width() + 6)
self.setMarginLineNumbers(0, True)
self.setMarginsBackgroundColor(QColor("#cccccc"))
# Clickable margin 1 for showing markers
self.setMarginSensitivity(1, True)
self.marginClicked.connect(self.on_margin_clicked)
self.markerDefine(QsciScintilla.MarkerSymbol.RightArrow,
self.ARROW_MARKER_NUM)
self.setMarkerBackgroundColor(QColor("#ee1111"),
self.ARROW_MARKER_NUM)
# Brace matching: enable for a brace immediately before or after
# the current position
#
self.setBraceMatching(QsciScintilla.BraceMatch.SloppyBraceMatch)
# Current line visible with special background color
self.setCaretLineVisible(True)
self.setCaretLineBackgroundColor(QColor("#ffe4e4"))
# Set Python lexer
# Set style for Python comments (style number 1) to a fixed-width
# courier.
#
lexer = QsciLexerPython()
lexer.setDefaultFont(font)
self.setLexer(lexer)
#self.SendScintilla(QsciScintilla.SCI_STYLESETFONT, 1, 'Courier')
# Don't want to see the horizontal scrollbar at all
# Use raw message to Scintilla here (all messages are documented
# here: http://www.scintilla.org/ScintillaDoc.html)
self.SendScintilla(QsciScintilla.SCI_SETHSCROLLBAR, 0)
# not too small
self.setMinimumSize(600, 450)
def on_margin_clicked(self, nmargin, nline, modifiers):
# Toggle marker for the line the margin was clicked on
if self.markersAtLine(nline) != 0:
self.markerDelete(nline, self.ARROW_MARKER_NUM)
else:
self.markerAdd(nline, self.ARROW_MARKER_NUM)
if __name__ == "__main__":
app = QApplication(sys.argv)
editor = SimplePythonEditor()
editor.show()
editor.setText(open(sys.argv[0]).read())
app.exec()
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